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This article mainly introduces the example analysis of sort multi-field sorting in linux, which is very detailed and has certain reference value. Friends who are interested must finish it!

The details are as follows.

Linux most distributions come with the sort program, very powerful, here only talk about multi-field sorting

Sort has a parameter-k, which can specify fields, has more complex syntax, and is not within the scope of the text.

The following is a piece of data (obtained from the gene, just as demo), and the file name is data

Chr13 3008566 3008677

Chr9 3024384 3024515

Chr19 3157071 3157172

Chr5 3236386 3236476

Chr13 3041044 3041191

Chr12 3045343 3045532

Chr6 3087308 3087625

Chr5 3109870 3110091

Chr9 3115454 3115531

The fields are separated by spaces in the middle

Now you want to sort by chromosome first, and then the genes on the same chromosome are sorted by the starting site, so this is a multi-field sort, and the second field is a number, using the sort command as follows

Sort-t''- K1 data 1-K2n Magi 2

Where-t 'specifies the use of spaces for sorting

-K1Power1 specifies to sort by the first column keyword

-k2nmem2 specifies that the data is sorted by the second column keyword

You can also use the

Sort + 0-1 + 1n-2

The effect is the same.

Sort result

Chr12 3045343 3045532

Chr13 3008566 3008677

Chr13 3041044 3041191

Chr19 3157071 3157172

Chr5 3109870 3110091

Chr5 3236386 3236476

Chr6 3087308 3087625

Chr9 3024384 3024515

Chr9 3115454 3115531

The above is all the contents of the article "sample Analysis of sort Multi-field sorting in linux". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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